Use the Data Given Below to Answer the Following Questions)

question 30

Multiple Choice

Use the data given below to answer the following questions) .
Following is an extract from the database of a construction company. The table shows the height of walls in feet and the cost of raising them. The estimated simple linear regression equation is given as Ŷ = b0 + b1X. Hint: Use Excel functions) . $$\begin{array} { | r | r | } \hline \text { Height ft) } & \text { Cost \$) } \\\hline 4 & 670 \\\hline 3 & 430 \\\hline 7 & 810 \\\hline 9 & 1100 \\\hline 6 & 790 \\\hline 8 & 880 \\\hline 5 & 760 \\\hline 11 & 1200 \\\hline\end{array}$$
-Which of the following is true about Excel outputs Multiple R?

• A) It is often referred to as the coefficient of determination.
• B) A value of 0 indicates positive correlation.
• C) A negative slope of the regression line denotes a positive Multiple R.
• D) It is another name for the sample correlation coefficient, r.

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Definitions:

Hiring

The action of starting a legal relationship between an employer and employee where the employee performs work under certain conditions in exchange for remuneration.

Union Membership

The state or condition of being a member of a labor union, which represents workers in specific industries or professions in negotiations over wages, benefits, and working conditions.

United States

A country in North America consisting of 50 states, a federal district, five major self-governing territories, and various possessions.

World War II

World War II was a global conflict lasting from 1939 to 1945, involving most of the world's nations, including all of the great powers, eventually forming two opposing military alliances: the Allies and the Axis.